Suetonius Divus Julius 39.1

1. Gladiators were first publicly exhibited at Rome by two brothers called Bruti, at the funeral of their father, A.U.C. 490; and for some time they were exhibited only on such occasions. But afterwards they were also employed by the magistrates, to entertain the people, particularly at the Saturnalia, and feasts of Minerva. These cruel spectacles were prohibited by Constantine , but not entirely suppressed until the time of Honorius.

2. The Circensian games were shews exhibited in the Circus Maximus, and consisted of various kinds: first, chariot and horse-races, of which the Romans were extravagantly fond. The charioteers were distributed into four parties, distinguished by the colour of their dress. The spectators, without regarding the speed of the horses, or the skill of the men, were attracted merely by one or the other of the colours, as caprice inclined them. In the time of Justinian, no less than thirty thousand men lost their lives at Constantinople , in a tumult raised by a contention amongst the partizans of the several colours. Secondly, contests of agility and strength; of which there were five kinds, hence called Pentathlum. These were, running, leaping, boxing, wrestling, and throwing the discus or quoit. Thirdly, Ludus Trojae, a mock-fight, performed by young noblemen on horseback, revived by Julius Caesar, and frequently celebrated by the succeeding emperors. We meet with a description of it in the fifth book of the Aeneid, beginning with the following lines:

Incedunt pueri, pariterque ante ora parentum

Frenatis lucent in equis: quos omnis euntes

Trinacriae mirata fremit Trojaeque juventus.

Aen. 5.553-555 Fourthly, Venatio, which was the fighting of wild beasts with one another, or with men called Bestarii, who were either forced to the combat by way of punishment, as the primitive Christians were, or fought voluntarily, either from a natural ferocity of disposition, or induced by hire. An incredible number of animals of various kinds were brought from all quarters, at a prodigious expense, for the entertainment of the people. Pompey, in his second consulship, exhibited at once five hundred lions, which were all dispatched in five days; also eighteen elephants. Fifthly, the representation of a horse and foot battle, with that of an encampment or a siege. Sixthly, the representation of a sea-fight (Naumachia), which was at first made in the Circus Maximus, but afterwards elsewhere. The combatants were usually captives or condemned malefactors, who fought to death, unless saved by the clemency of the emperor. If any thing unlucky happened at the games, they were renewed, and often more than once.